C#与C++数据类型比较及结构体转换[整理]
//c++:HANDLE(void *) ---- c#:System.IntPtr
//c++:Byte(unsigned
char)
----
c#:System.Byte
//c++:SHORT(short)
---- c#:System.Int16
//c++:WORD(unsigned
short)
----
c#:System.UInt16
//c++:INT(int)
----
c#:System.Int16
//c++:INT(int)
---- c#:System.Int32
//c++:UINT(unsigned
int)
----
c#:System.UInt16
//c++:UINT(unsigned
int)
----
c#:System.UInt32
//c++:LONG(long)
---- c#:System.Int32
//c++:ULONG(unsigned
long)
----
c#:System.UInt32
//c++:DWORD(unsigned long)
----
c#:System.UInt32
//c++:DECIMAL
----
c#:System.Decimal
//c++:BOOL(long)
----
c#:System.Boolean
//c++:CHAR(char)
---- c#:System.Char
//c++:LPSTR(char
*)
---- c#:System.String
//c++:LPWSTR(wchar_t
*)
----
c#:System.String
//c++:LPCSTR(const char
*)
----
c#:System.String
//c++:LPCWSTR(const wchar_t
*)
---- c#:System.String
//c++:PCAHR(char
*)
----
c#:System.String
//c++:BSTR
----
c#:System.String
//c++:FLOAT(float)
----
c#:System.Single
//c++:DOUBLE(double)
----
c#:System.Double
//c++:VARIANT
----
c#:System.Object
//c++:PBYTE(byte *)
----
c#:System.Byte[]
//c++:BSTR
---- c#:StringBuilder
//c++:LPCTSTR
---- c#:StringBuilder
//c++:LPCTSTR
---- c#:string
//c++:LPTSTR
---- c#:[MarshalAs(UnmanagedType.LPTStr)]
string
//c++:LPTSTR 输出变量名
---- c#:StringBuilder
输出变量名
//c++:LPCWSTR
----
c#:IntPtr
//c++:BOOL
----
c#:bool
//c++:HMODULE
----
c#:IntPtr
//c++:HINSTANCE
----
c#:IntPtr
//c++:结构体
---- c#:public struct
结构体{};
//c++:结构体 **变量名
---- c#:out 变量名
//C#中提前申明一个结构体实例化后的变量名
//c++:结构体 &变量名
---- c#:ref 结构体
变量名
//c++:WORD
----
c#:ushort
//c++:DWORD
----
c#:uint
//c++:DWORD
----
c#:int
//c++:UCHAR
----
c#:int
//c++:UCHAR
----
c#:byte
//c++:UCHAR*
----
c#:string
//c++:UCHAR*
----
c#:IntPtr
//c++:GUID
----
c#:Guid
//c++:Handle
----
c#:IntPtr
//c++:HWND
----
c#:IntPtr
//c++:DWORD
----
c#:int
//c++:COLORREF
----
c#:uint
//c++:unsigned char
----
c#:byte
//c++:unsigned char *
---- c#:ref byte
//c++:unsigned char
*
----
c#:[MarshalAs(UnmanagedType.LPArray)] byte[]
//c++:unsigned char
*
----
c#:[MarshalAs(UnmanagedType.LPArray)] Intptr
//c++:unsigned char
&
----
c#:ref byte
//c++:unsigned char 变量名
---- c#:byte 变量名
//c++:unsigned short
变量名
---- c#:ushort
变量名
//c++:unsigned int 变量名
---- c#:uint 变量名
//c++:unsigned long
变量名
---- c#:ulong
变量名
//c++:char 变量名
---- c#:byte 变量名
//C++中一个字符用一个字节表示,C#中一个字符用两个字节表示
//c++:char 数组名[数组大小]
---- c#:MarshalAs(UnmanagedType.ByValTStr, SizeConst
=
数组大小)] public string 数组名;
ushort
//c++:char
*
----
c#:string //传入参数
//c++:char
*
----
c#:StringBuilder//传出参数
//c++:char *变量名
---- c#:ref string
变量名
//c++:char *输入变量名
---- c#:string 输入变量名
//c++:char *输出变量名
----
c#:[MarshalAs(UnmanagedType.LPStr)] StringBuilder 输出变量名
//c++:char
**
----
c#:string
//c++:char **变量名
---- c#:ref string 变量名
//c++:const char
*
----
c#:string
//c++:char[]
----
c#:string
//c++:char 变量名[数组大小]
----
c#:[MarshalAs(UnmanagedType.ByValTStr,SizeConst
= 数组大小)] public string
变量名;
//c++:struct 结构体名 *变量名
----
c#:ref 结构体名 变量名
//c++:委托 变量名
----
c#:委托变量名
//c++:int
----
c#:int
//c++:int
----
c#:ref int
//c++:int &
----
c#:ref int
//c++:int *
----
c#:ref int //C#中调用前需定义int 变量名
=
0;
//c++:*int
----
c#:IntPtr
//c++:int32 PIPTR *
---- c#:int32[]
//c++:float PIPTR
*
----
c#:float[]
//c++:double**
数组名
---- c#:ref double 数组名
//c++:double*[]
数组名
----
c#:ref double
数组名
//c++:long
----
c#:int
//c++:ulong
----
c#:int
//c++:UINT8
*
---- c#:ref
byte //C#中调用前需定义byte 变量名
= new
byte();
//c++:handle
---- c#:IntPtr
//c++:hwnd
----
c#:IntPtr
//c++:void *
----
c#:IntPtr
//c++:void *
user_obj_param
---- c#:IntPtr
user_obj_param
//c++:void * 对象名称
---- c#:([MarshalAs(UnmanagedType.AsAny)]Object
对象名称
//c++:char, INT8, SBYTE,
CHAR
---- c#:System.SByte
//c++:short, short int, INT16,
SHORT
---- c#:System.Int16
//c++:int, long, long int, INT32,
LONG32, BOOL , INT
---- c#:System.Int32
//c++:__int64, INT64,
LONGLONG
---- c#:System.Int64
//c++:unsigned char, UINT8, UCHAR ,
BYTE
---- c#:System.Byte
//c++:unsigned short, UINT16, USHORT,
WORD, ATOM, WCHAR ,
__wchar_t
---- c#:System.UInt16
//c++:unsigned, unsigned int, UINT32,
ULONG32, DWORD32, ULONG, DWORD, UINT
---- c#:System.UInt32
//c++:unsigned __int64, UINT64,
DWORDLONG,
ULONGLONG
---- c#:System.UInt64
//c++:float,
FLOAT
---- c#:System.Single
//c++:double, long double,
DOUBLE
---- c#:System.Double
//Win32
Types
---- CLR
Type
//Struct需要在C#里重新定义一个Struct
//CallBack回调函数需要封装在一个委托里,delegate
static extern int FunCallBack(string str);
//unsigned char**
ppImage替换成IntPtr ppImage
//int& nWidth替换成ref int nWidth
//int*,
int&, 则都可用 ref int 对应
//双针指类型参数,可以用 ref IntPtr
//函数指针使用c++: typedef
double (*fun_type1)(double); 对应 c#:public delegate double
fun_type1(double);
//char* 的操作c++: char*; 对应
c#:StringBuilder;
//c#中使用指针:在需要使用指针的地方 加
unsafe
//unsigned char对应public
byte
WORD
ushort
DWORD
uint
UCHAR
int/byte
大部分情况都可以使用int代替,而如果需要严格对齐的话则应该用bytebyte
UCHAR*
string/IntPtr
unsigned char*
[MarshalAs(UnmanagedType.LPArray)]byte[]/?(Intptr)
char*
string
LPCTSTR
string
LPTSTR
[MarshalAs(UnmanagedType.LPTStr)]
string
long
int
ulong
uint
Handle
IntPtr
HWND
IntPtr
void*
IntPtr
int
int
int*
ref
int
*int
IntPtr
unsigned
int
uint
COLORREF
uint
API与C#的数据类型对应关系表
API数据类型 类型描述
C#类型 API数据类型 类型描述
C#类型
WORD
16位无符号整数
ushort CHAR
字符
char
LONG 32位无符号整数
int
DWORDLONG 64位长整数
long
DWORD 32位无符号整数
uint
HDC
设备描述表句柄 int
HANDLE 句柄,32位整数
int
HGDIOBJ GDI 对象句柄
int
UINT
32位无符号整数
uint HINSTANCE
实例句柄
int
BOOL 32位布尔型整数
bool
HWM
窗口句柄
int
LPSTR 指向字符的32位指针 string
HPARAM
32位消息参数 int
LPCSTR 指向常字符的32位指针 String
LPARAM
32位消息参数 int
BYTE 字节
byte WPARAM
32位消息参数
int
BOOL =
System.Int32
BOOLEAN
= System.Int32
BYTE
=
System.UInt16
CHAR
=
System.Int16
COLORREF =
System.UInt32
DWORD
=
System.UInt32
DWORD32 =
System.UInt32
DWORD64
= System.UInt64
FLOAT
=
System.Float
HACCEL =
System.IntPtr
HANDLE
=
System.IntPtr
HBITMAP =
System.IntPtr
HBRUSH
= System.IntPtr
HCONV
=
System.IntPtr
HCONVLIST =
System.IntPtr
HCURSOR
= System.IntPtr
HDC
=
System.IntPtr
HDDEDATA =
System.IntPtr
HDESK
=
System.IntPtr
HDROP
= System.IntPtr
HDWP
=
System.IntPtr
HENHMETAFILE =
System.IntPtr
HFILE
= System.IntPtr
HFONT
=
System.IntPtr
HGDIOBJ =
System.IntPtr
HGLOBAL
= System.IntPtr
HHOOK
=
System.IntPtr
HICON
= System.IntPtr
HIMAGELIST
= System.IntPtr
HIMC
=
System.IntPtr
HINSTANCE =
System.IntPtr
HKEY
=
System.IntPtr
HLOCAL =
System.IntPtr
HMENU
=
System.IntPtr
HMETAFILE =
System.IntPtr
HMODULE
=
System.IntPtr
HMONITOR =
System.IntPtr
HPALETTE
= System.IntPtr
HPEN
=
System.IntPtr
HRGN
= System.IntPtr
HRSRC
=
System.IntPtr
HSZ
=
System.IntPtr
HWINSTA =
System.IntPtr
HWND
=
System.IntPtr
INT
= System.Int32
INT32
=
System.Int32
INT64
= System.Int64
LONG
=
System.Int32
LONG32 =
System.Int32
LONG64
=
System.Int64
LONGLONG =
System.Int64
LPARAM
= System.IntPtr
LPBOOL
=
System.Int16[]
LPBYTE
=
System.UInt16[]
LPCOLORREF =
System.UInt32[]
LPCSTR
=
System.String
LPCTSTR =
System.String
LPCVOID
=
System.UInt32
LPCWSTR =
System.String
LPDWORD
=
System.UInt32[]
LPHANDLE =
System.UInt32
LPINT
=
System.Int32[]
LPLONG
= System.Int32[]
LPSTR
=
System.String
LPTSTR =
System.String
LPVOID
= System.UInt32
LPWORD
=
System.Int32[]
LPWSTR
=
System.String
LRESULT =
System.IntPtr
PBOOL
=
System.Int16[]
PBOOLEAN =
System.Int16[]
PBYTE
=
System.UInt16[]
PCHAR
= System.Char[]
PCSTR
=
System.String
PCTSTR =
System.String
PCWCH
=
System.UInt32
PCWSTR =
System.UInt32
PDWORD
=
System.Int32[]
PFLOAT
=
System.Float[]
PHANDLE =
System.UInt32
PHKEY
=
System.UInt32
PINT
= System.Int32[]
PLCID
=
System.UInt32
PLONG
= System.Int32[]
PLUID
=
System.UInt32
PSHORT =
System.Int16[]
PSTR
=
System.String
PTBYTE =
System.Char[]
PTCHAR
= System.Char[]
PTSTR
=
System.String
PUCHAR =
System.Char[]
PUINT
=
System.UInt32[]
PULONG
=
System.UInt32[]
PUSHORT =
System.UInt16[]
PVOID
=
System.UInt32
PWCHAR =
System.Char[]
PWORD
=
System.Int16[]
PWSTR
= System.String
REGSAM
=
System.UInt32
SC_HANDLE =
System.IntPtr
SC_LOCK
= System.IntPtr
SHORT
=
System.Int16
SIZE_T =
System.UInt32
SSIZE_
= System.UInt32
TBYTE
=
System.Char
TCHAR
= System.Char
UCHAR
=
System.Byte
UINT
= System.UInt32
UINT32
=
System.UInt32
UINT64 =
System.UInt64
ULONG
=
System.UInt32
ULONG32 =
System.UInt32
ULONG64
=
System.UInt64
ULONGLONG =
System.UInt64
USHORT
= System.UInt16
WORD
=
System.UInt16
WPARAM =
System.IntPtr
Wtypes.h 中的非托管类型 非托管C
语言类型
托管类名
说明
HANDLE
void*
System.IntPtr 32
位
BYTE
unsigned char
System.Byte 8
位
SHORT
short
System.Int16 16
位
WORD
unsigned short
System.UInt16 16
位
INT
int
System.Int32 32
位
UINT
unsigned int
System.UInt32 32
位
LONG
long
System.Int32 32
位
BOOL
long
System.Int32 32
位
DWORD
unsigned long
System.UInt32 32
位
ULONG
unsigned long
System.UInt32 32
位
CHAR
char
System.Char 用 ANSI
修饰。
LPSTR
char*
System.String 或 System.StringBuilder 用 ANSI
修饰。
LPCSTR
Const char* System.String
或 System.StringBuilder 用 ANSI
修饰。
LPWSTR
wchar_t*
System.String 或 System.StringBuilder 用 Unicode
修饰。
LPCWSTR
Const wchar_t* System.String 或
System.StringBuilder 用 Unicode
修饰。
FLOAT
Float
System.Single 32
位
DOUBLE
Double
System.Double 64
位
C/C++中的结构类型数据在C#下的转换
在做项目移植的时候,经常会碰到数据类型的转换,而我这一次碰到的是C/C++中的结构怎样转换到C#。折腾了一个晚上终于有一个完美的方案。
例如我们在C/C++下的结构数据如下:
typedef
struct
{
char sLibName[ 256
];
char sPathToLibrary[ 256 ];
INT32 iEntries;
INT32 iUsed;
UINT16 iSort;
UINT16 iVersion;
BOOLEAN fContainsSubDirectories;
INT32 iReserved;
}
LIBHEADER;
我们想把它转成C#下的结构类型如下:
public struct
LIBHEADER
{
public char[] sLibName;
public
char[] sPathToLibrary;
public
Int32 iEntries;
public Int32
iUsed;
public UInt16
iSort;
public UInt16
iVersion;
public Boolean
fContainsSubDirectories;
public
Int32 iReserved;
}
看上去好像没问题了,呵呵呵,其实这样是不行的,我们得再给C#编译器一些信息,告诉它一些字符数组的大小。然后它们在C#下面长得样子就变成这样:
[StructLayout(LayoutKind.Sequential)]
public struct
LIBHEADER
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst =
256)]
public char[]
sLibName;
[MarshalAs(UnmanagedType.ByValArray, SizeConst =
256)]
public char[]
sPathToLibrary;
public Int32
iEntries;
public Int32
iUsed;
public UInt16
iSort;
public UInt16
iVersion;
public Boolean
fContainsSubDirectories;
public
Int32 iReserved;
}
然后写一个函数负责转换。
public StructType
ConverBytesToStructure<StructType>(byte[]
bytesBuffer)
{
//
检查长度。
if
(bytesBuffer.Length !=
Marshal.SizeOf(typeof(StructType)))
{
throw new
ArgumentException("bytesBuffer参数和structObject参数字节长度不一致。");
}
IntPtr bufferHandler =
Marshal.AllocHGlobal(bytesBuffer.Length);
for (int index = 0; index < bytesBuffer.Length;
index++)
{
Marshal.WriteByte(bufferHandler, index,
bytesBuffer[index]);
}
StructType structObject = (StructType)Marshal.PtrToStructure(bufferHandler,
typeof(StructType));
Marshal.FreeHGlobal(bufferHandler);
return structObject;
}
然后我们的函数用例是这样:
FileStream file = File.OpenRead(@"D:/Jagged Alliance 2
Gold/INSTALL.LOG");
byte[] buffer = new
byte[Marshal.SizeOf(typeof(LIBHEADER))];
file.Read(buffer, 0,
buffer.Length);
LIBHEADER testValue =
CommonTools.ConverBytesToStructure<LIBHEADER>(buffer);
string libName = new
string(testValue.sLibName);
string pathToLibrary = new
string(testValue.sPathToLibrary);
OK,搞定。
如果想去掉后面两句的char数组的转换哪代码如下
C#中的结构代码
[StructLayout(LayoutKind.Sequential, CharSet =
CharSet.Ansi)]
public struct
LIBHEADER
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst =
256)]
public string
sLibName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst =
256)]
public string
sPathToLibrary;
public Int32
iEntries;
public Int32
iUsed;
public UInt16
iSort;
public UInt16
iVersion;
public Boolean
fContainsSubDirectories;
public
Int32 iReserved;
}
其它代码不用作修改便可使用
来自:http://blog.sina.com.cn/s/blog_88531fdd0100xk9g.html